CN217882567U

CN217882567U - Ring main unit

Info

Publication number: CN217882567U
Application number: CN202221529331.0U
Authority: CN
Inventors: 黄慧; 张地; 薛建武; 李吉程
Original assignee: Shanghai Nanhua Lanling Electrical Co ltd
Current assignee: Shanghai Nanhua Lanling Electrical Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-22
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses a ring main unit belongs to ring main unit technical field, include: the device comprises a shell, a functional component, a reticular support frame and a partition plate; the baffle is installed the top of netted support frame, set up a plurality of bleeder vents on the baffle, the shell is installed on the baffle, the functional unit is installed on the baffle and be located the inside of shell, the top of shell is provided with the toper portion, the top of toper portion is provided with the pipeline. The utility model discloses need not increase and be used for rising from the pipeline to the extra electrical equipment of the inside heat dissipation of looped netowrk cabinet, utilize the hot-air, the inside negative pressure that forms of shell, novel air from the shell bottom get into the shell inside, air cycle is reciprocal realizes the heat dissipation of looped netowrk cabinet, and the feasibility of implementing is good.

Description

Ring main unit

Technical Field

The utility model relates to a looped netowrk cabinet technical field especially relates to a looped netowrk cabinet.

Background

The ring main unit is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, so that the ring main unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The looped netowrk cabinet generally includes the cabinet body, cabinet door, installs the electric elements in the internal portion of cabinet, and then can arrange the box in when being used for the open air in, the box plays the effect such as keep off rain, dampproofing, protection against rodents, fire prevention, theftproof, thermal-insulated and pleasing to the eye. The heat dissipation of outdoor looped netowrk cabinet inside is not in time, and inside high temperature can cause inside electrical components to burn out and indirectly cause the short circuit, influences the transmission of electric power. Current outdoor looped netowrk cabinet is to inside heat dissipation, sets up the bar hole on the cabinet body or door and dispels the heat mostly, and such scheme radiating efficiency is not high, and for rain-proof water, the upper portion in bar hole is provided with the decurrent sheltering from moreover, and the hot-air is rebound, so set up obviously be unfavorable for the heat dissipation. The additional fan electrical equipment is added, the structure of the ring main unit is complex, and whether the additional heat dissipation electrical equipment is influenced by the high-voltage environment inside the ring main unit is unknown.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a looped netowrk cabinet does not increase extra heat dissipation electrical equipment, utilizes hot-air to rise from the pipeline, and the inside negative pressure that forms of shell to make fresh air enter into the shell, the circulation is reciprocal dispels the heat.

In order to realize the purpose, the utility model adopts the following technical scheme:

a ring main unit comprising: the device comprises a shell, a functional component, a reticular support frame and a partition plate; the baffle is installed the top of netted support frame, set up a plurality of bleeder vents on the baffle, the shell is installed on the baffle, the function block is installed on the baffle and be located the inside of shell, the top of shell is provided with the toper portion, the top of toper portion is provided with the pipeline.

Further, the multifunctional air-permeable sleeper also comprises sleepers, the sleepers are arranged on the partition plates and avoid the air holes, and the functional components are arranged on the sleepers.

Further, the air-permeable partition plate comprises a dryer, and a plurality of dryers are inserted into the air holes from the bottom of the partition plate.

Further, the wind cap is arranged at the top end of the pipeline.

Further, still include the filter screen, the filter screen is installed on the inner wall of netted support frame.

The beneficial effects of the utility model reside in that:

the utility model discloses the hot-air that the inside of looped netowrk cabinet produced rises, collects in the toper portion, through the pipeline is arranged outward, makes the shell inside form the negative pressure, and outside fresh air passes through netted support frame, desicator and bleeder vent in proper order and gets into the shell inside, and the circulation is reciprocal and is made the heat that the functional block produced or outside sunshine shine make the heat of shell inside dispel the heat, the utility model discloses do not need to increase extra electrical heat dissipation equipment; the hood at the top of the pipeline increases the upward circulation power of hot air, is beneficial to increasing the negative pressure in the shell, enhances the air circulation effect and improves the heat dissipation effect; the dryer helps to prevent moist air from entering the interior of the housing from the bottom end thereof.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of a ring main unit.

Fig. 2 is a left side view of the ring main unit.

Fig. 3 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 4 is a sectional view B-B of fig. 2.

Fig. 5 is a cross-sectional view C-C of fig. 1.

Wherein, in the figure:

10-shell, 11-conical part, 12-pipeline, 20-reticular support frame, 30-clapboard, 31-air hole, 40-functional component, 50-sleeper, 60-dryer and 70-hood.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides a ring main unit, include: the shell 10, the functional assembly 40, the net-shaped support frame 20 and the partition plate 30; the partition plate 30 is installed at the top end of the reticular support frame 20, and the shell 10 of the existing outdoor ring main unit is usually fixed on a support table made of reinforced cement, so that the ring main unit is far away from moist air on the ground or is not easy to touch by pedestrians; the utility model discloses a prefabricated netted support frame 20, netted support frame 20 is fixed through pre-buried subaerial bolt.

Set up a plurality of bleeder vents 31 on the baffle 30, outside fresh air passes through bleeder vent 31 and gets into the inside of shell 10, and shell 10 is installed on baffle 30, and function block 40 installs on baffle 30 and lies in the inside of shell 10, and fresh air enters into the inside back of shell 10 from bleeder vent 31, begins to carry the heat that function block 40 produced and rises. The top of shell 10 is provided with toper portion 11, the top of toper portion 11 is provided with pipeline 12, the heat that functional unit 40 work produced, or the heat of sunshine irradiation, the inside air of heating looped netowrk cabinet, the hot-air rises, rise to toper portion 11 reentrant pipeline 12, this in-process can make the inside negative pressure that forms of shell 10, outside fresh air passes through inside netted support frame 20 enters into shell 10, the air that newly enters carries the heat and continues to rise, so the circulation is reciprocal to be dispelled the heat, under the condition that does not increase extra equipment, dispel the heat inside shell 10.

The ring main unit further comprises sleepers 50, the sleepers 50 are mounted on the partition plate 30 and avoid the air holes 31, the functional components 40 are mounted on the sleepers 50, the functional components 40 are not in direct contact with the partition plate 30 through the sleepers 50 and avoid the air holes 31, so that the contact area between external fresh air and the functional components 40 is increased, the heat dissipation efficiency is improved, the functional components 40 are insulated from the outside, and the safety of the ring main unit is improved.

The ring main unit further comprises a plurality of dryers 60, the dryers 60 are inserted into the air holes 31 from the bottom of the partition plate 30, substances capable of drying air such as calcium chloride or calcium oxide can be placed inside the dryers 60, and moisture-containing air is prevented from entering the inside of the shell 10, so that the functional components 40 inside the dryers are affected with damp, corroded and aged.

The ring main unit further comprises an air cap 70, the air cap 70 is installed at the top end of the pipeline 12, power for upward circulation of hot air is increased, negative pressure inside the shell 10 is increased, the air circulation effect is enhanced, and the heat dissipation effect is improved.

The ring main unit further comprises a filter screen (not shown in the figure), the filter screen is installed on the inner wall of the net-shaped support frame 20, dust or large impurities are placed in the filter screen and enter the shell 10, and the interior of the shell 10 is kept clean.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ring main unit, characterized by comprising: the device comprises a shell, a functional component, a reticular support frame and a partition plate; the baffle is installed the top of netted support frame, set up a plurality of bleeder vents on the baffle, the shell is installed on the baffle, the functional unit is installed on the baffle and be located the inside of shell, the top of shell is provided with the toper portion, the top of toper portion is provided with the pipeline.

2. The ring main unit as claimed in claim 1, further comprising a plurality of sleepers installed on the partition plate and avoiding the ventilation holes, wherein the functional components are installed on the sleepers.

3. The ring main unit as claimed in claim 1, further comprising a plurality of dryers inserted into the ventilation holes from the bottom of the partition.

4. The ring main unit as claimed in claim 1, further comprising a hood, wherein the hood is installed at a top end of the pipe.

5. The ring main unit as claimed in claim 1, further comprising a filter net, wherein the filter net is mounted on the inner wall of the net-shaped supporting frame.